A grease trap is a plumbing device intercepting fats, oils, and grease from wastewater before it enters the sewer system, using a settling and separation process that allows these substances to be captured and periodically removed rather than flowing downstream where they could solidify and cause significant blockages.
This equipment is typically required by code for commercial kitchens and food service establishments generating significant grease-laden wastewater, though residential applications sometimes use smaller under-sink grease traps for similar protective benefit.
Because accumulated grease within sewer lines can solidify and cause serious blockages affecting not just the originating property but potentially the broader municipal sewer system, grease trap requirements and maintenance represent a genuine public infrastructure protection measure beyond just individual property benefit.
What Does a Grease Trap Involve?
- A settling chamber separating grease from wastewater
- Periodic pumping or cleaning to remove accumulated grease
- Code requirements for commercial food service establishments
- Smaller residential versions for similar protective benefit
Why Are Grease Traps Important?
By capturing fats, oils, and grease before they enter the sewer system, grease traps prevent the serious blockages this material can cause both within a property’s own sewer line and potentially in the broader municipal system, making regular maintenance of this equipment a genuine public infrastructure protection responsibility for commercial food service operations. Neglected grease trap maintenance can result in code violations, fines, and costly plumbing emergencies.
Commercial food service establishments should establish a regular grease trap cleaning schedule based on their specific volume and grease generation, rather than waiting for problems to develop, since proactive maintenance is considerably less disruptive and costly than addressing an actual blockage emergency.
Grease Trap vs. Septic Tank
A grease trap specifically intercepts fats and oils before wastewater enters the sewer system. A septic tank is an entirely different, larger system treating and processing all wastewater for properties without municipal sewer connection.